<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>网络五子棋</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Microsoft YaHei', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .container {
            text-align: center;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 60px 40px;
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .game-title {
            font-size: 4rem;
            font-weight: bold;
            color: white;
            text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.5);
            margin-bottom: 30px;
            letter-spacing: 4px;
        }
        
        .game-subtitle {
            font-size: 1.5rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 50px;
            font-weight: 300;
        }
        
        .start-btn {
            background: linear-gradient(45deg, #ff6b6b, #ee5a24);
            color: white;
            border: none;
            padding: 20px 60px;
            font-size: 1.5rem;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 6px 20px rgba(238, 90, 36, 0.4);
            font-weight: bold;
            letter-spacing: 2px;
        }
        
        .start-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(238, 90, 36, 0.6);
        }
        
        .start-btn:active {
            transform: translateY(-1px);
        }
        
        .chess-piece {
            font-size: 2rem;
            margin: 0 10px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1 class="game-title">
            <span class="chess-piece">⚫</span>
            网络五子棋
            <span class="chess-piece">⚪</span>
        </h1>
        <p class="game-subtitle">传统智慧 · 在线竞技 · 实时对战</p>
        <button class="start-btn" onclick="startGame()">开始游戏</button>
    </div>

    <script>
        function startGame() {
            window.location.href = 'login.html';
        }
    </script>
</body>
</html>